Логотипы на букву O

Oriflame (Орифлейм)	Outlook Express	OBI
Opel (Опель)	Ostin	Ozon.ru
Oracle Corporation	Opel, 2002-2007	Omega
Ottawa Senators	Oklick	O'Hara
Opera 10, 2009	Orio	Opel, 2007-2009
OKI Printing Solutions	Octonus	Olympus Corporation
Osram	Ogilvy & Mather	Oral-B
OMV	Orange SA	Oxagile
ORB	Oккo	Originalline
Overia	openSUSE	Oldsmobile